A functional candy containing the ingredients from Echinacea purpurea and some Chinese herbs was prepared by extraction, filtration, concentration, formulation, and candy-making process.
经提取、过滤、浓缩、复方试验和糖果制造工艺制成含有紫锥菊和其它几种中草药浸提物的功能性糖果。
These pumps are widely used for applications including filtration, sample concentration, solid phase extraction. They are the important basic instruments in the lab.
无油真空泵广泛应用于过滤、样品浓缩、固相萃取等装置中，是实验室重要的基础设备。
The products obtained were purified by extraction with copper sulfate solution, filtration through silica gel, recrystallization and vacuum sublimation.
粗产物经硫酸铜溶液萃取、硅胶过滤、重结晶、真空升华进行分离提纯得到纯产品。
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